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22 May, 23:29

An object of 4 kg has a speed of 6 m/s and moves a distance of 8 m. What is its kinetic energy in joules.

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  1. 23 May, 00:14
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    The answer to your question is Ke = 72 J

    Explanation:

    Kinetic energy depends on the speed of and object and its mass.

    Data

    mass = m = 4 kg

    speed = v = 6 m/s

    distance = d = 8 m

    Kinetic energy = ke = ?

    Formula

    Ke = (1/2) mv²

    Substitution

    Ke = (1/2) (4) (6) ²

    Simplification

    Ke = (1/2) (4) (36)

    Ke = (1/2) (144)

    Ke = 72 Joules

    Result

    Ke = 72 J
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